Re: multinational FTPAPI

[Scott Klement <sk@xxxxxxxxxxxxxxxx>]

Sender: Scott Klement <sk@xxxxxxxxxxxxxxxx>


> Why does IBM not (nicely!) port the record level, DSPF, PRTF I/O to C and 
> through away this RPG? I mean... a language which uses 16 bit pointers for 
> strings on a 64 bit platform is a joke!

That's 16 *byte* pointers, not 16-bit pointers!   The iSeries system 
design uses something called "single-level store." Part of the design 
for this includes the fact that all disk or memory on the system can be 
addressed with a pointer -- and that means a very big pointer, 16 bytes 
(or 128 bits) long.

This has nothing to do with RPG, specifically, it's the way the platform 
works.  All languages use 16-byte pointers.

The single exception to this is for memory that's stored in teraspace 
isntead of the traditional single-level store. (Teraspace data is 
"mapped" across SLS spaces, so it's not actually direct memory access, but 
a sort of virtual interface to memory.)  Teraspace pointers in C can be 
8-byte (64-bit) pointers, which run a little faster because of the 64-bit 
nature of the system, whereas RPG still has to use 16-byte pointers 
(128-bit) for teraspace.  But, I've never written anything where the 
difference is noticable.

Anyway, what is your objection to 16-byte pointers on a 64-bit system?
-----------------------------------------------------------------------
This is the FTPAPI mailing list.  To unsubsribe from the list send mail
to majordomo@xxxxxxxxxxxxx with the body: unsubscribe ftpapi mymailaddr
-----------------------------------------------------------------------